Twin Lakes Park Water Coop
Published drinking-water records and contacts for Twin Lakes Park Water Coop. System WI2300151. Review sources and dates; not a real-time water assessment.
- System ID
- WI2300151
- State or territory
- WI
- Published population served
- 150
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 12 — 1993-07-01 – 2021-09-30
- Wisconsin DNR public-system PFAS records: 72 — 2023-11-14 – 2026-05-05
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.000315 mg/L | 2021-06-01 – 2021-09-30 | 2026Q3 |
| Lead (PB90) | 0.00059 mg/L | 2018-06-01 – 2018-09-30 | 2026Q3 |
| Lead (PB90) | 0.000215 mg/L | 2015-06-01 – 2015-09-30 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2012-06-01 – 2012-09-30 | 2026Q3 |
| Lead (PB90) | 0.00031 mg/L | 2009-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.00065 mg/L | 2006-01-01 – 2006-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2003-01-01 – 2003-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2000-07-01 – 2000-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PFDOA | < 0.64 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHPA | < 0.55 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHXA | < 0.57 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFHXS | < 0.65 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFNA | < 0.53 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOA | < 0.48 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFOS | < 0.49 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTA | < 0.55 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFTrDA | < 0.55 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFUNA | < 0.53 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| 11CL-PF3OUDS | < 0.31 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
| 9CL-PF3ONS | < 0.48 ng/L | 2026-05-05 | Entry Point / Wisconsin DNR public-system PFAS records |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
11 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2026-07-01 – 2026-08-27 | Unaddressed | Yes | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2026-05-07 – — | Unaddressed | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2026-04-01 – 2026-06-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2026-01-01 – 2026-03-31 | Archived | Yes | 2026Q3 |
| Lead and Copper Rule Revisions / Notification, Known or Potential LSL | 2025-07-02 – — | Resolved | No | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2025-07-02 – — | Unaddressed | No | 2026Q3 |
| Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report | 2019-07-01 – — | Resolved | No | 2026Q3 |
| Consumer Confidence Rule / Consumer Confidence Report Inadequate Reporting | 2019-07-01 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2019-05-01 – 2019-05-31 | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1991-10-01 – 1991-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 1991-09-01 – 1991-09-30 | Archived | Yes | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
- Wisconsin DNR public-system PFAS records — last successful check: 2026-10-10
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.